Linux kernel 6.0-rc1 released
So here we are, two weeks later, and the merge window has closed.
People are chasing down one active bug, and I'm sure there are others hiding that just need more people to do testing, but that's kind of the point of rc1: all the big changes have been merged, and now we need to calm it down and chase down any problems.
Despite the major number change, there's nothing fundamentally different about this release - I've long eschewed the notion that major numbers are meaningful, and the only reason for a "hierarchical" numbering system is to make the numbers easier to remember and distinguish. Which is why when the minor number gets to around 20 I prefer to just increment the major number instead and reset to something smaller.
"Nothing fundamentally different about this release" obviously doesn't mean there aren't lots of changes, though. There's about 13.5k non-merge commits in here (and 800+ merges), so 6.0 looks to be another fairly sizable release.
I actually was hoping that we'd get some of the first rust infrastructure, and the multi-gen LRU VM, but neither of them happened this time around. There's always more releases. But there's a lot of continued development pretty much all over the place, with the "shortlog" being much too long to post and thus - as always for rc1 notices - below only contains my "merge log". You can definitely get a kind of high-level overview by just scanning that, but obviously it's worth once again pointing out that the people mentioned in the merge log are just the maintainers I pull from, and there's more than 1700 developers involved when you start looking at the full details in the git tree.
And, once again, this is one of those releases where you should not look at the diffstat too closely, because more than half of it is yet another AMD GPU register dump. And the Habanalabs Gaudi2 people want to play in that space too, but they don't reach quite the same lofty results that the AMD GPU people have become so famous for. I'm sure it's just a matter of time.
The CPU people also show up in the JSON files that describe the perf events, but they look absolutely tiny compared to the 'asic_reg' auto-generated GPU and AI hardware definitions.
So just avert your eyes from those parts if you decide that you actually want to look at the diffs themselves. Once you do that, the stats look pretty normal, with roughly 60% driver updates (all over, but gpu, networking and sound are the big updates - again, that's pretty much par for the course). The rest is a mix of arch updates, filesystems, tooling, and just random changes all over.
In all its glory (so all those AMD GPU hardware definitions etc included), it's
13099 files changed, 1280295 insertions(+), 341210 deletions(-)
just because I was curious and looked.
Oh, and after I had already decided to call this kernel 6.0, a few Chinese developers piped up and pointed out that "5.20" is a more wholesome version of the Western "4.20" internet-famous number. So if you want to call this "Linux 5.20", go right ahead. Because the kernel version numbers really are entirely made up and have no intrinsic meaning.
But whatever you call it, please help test this, so that we can get it all in shape for the final release (hopefully early October).
Linus
Full source: https://git.kernel.org/torvalds/t/linux-6.0-rc1.tar.gz
Patch: https://git.kernel.org/torvalds/p/v6.0-rc1/vNone
Change log:
Al Viro (9):
vfs namei updates
vfs lseek updates
vfs dcache updates
vfs iov_iter updates
copy_to_iter_mc fix
9p iov_iter fix
more iov_iter updates
/proc/mounts fix
vfs lseek fix
Alex Williamson (2):
VFIO updates
another VFIO update
Alexander Gordeev (1):
s390 updates
Alexandre Belloni (1):
RTC updates
Andreas Gruenbacher (1):
gfs2 updates
Andrew Morton (3):
MM updates
misc updates
remaining MM updates
Ard Biesheuvel (2):
EFI updates
efivars sysfs interface removal
Arnaldo Carvalho de Melo (2):
perf tools updates
more perf tool updates
Arnd Bergmann (8):
ARM SoC updates
ARM SoC drivers
ARM DT updates
ARM SoC defconfig updates
ARM new SoC support
ARM boardfile deprecation
more ARM SoC updates
asm-generic updates
Bartosz Golaszewski (1):
gpio updates
Bjorn Andersson (4):
hwspinlock updates
rpmsg updates
remoteproc updates
rpmsg fixes
Bjorn Helgaas (1):
pci updates
Borislav Petkov (11):
RAS update
x86 vmware cleanup
x86 cleanup
x86 mm updates
x86 fpu update
x86 cpu updates
misc x86 updates
x86 core updates
x86 build updates
x86 kdump updates
x86 eIBRS fixes
Casey Schaufler (1):
msack updates
Christian Brauner (3):
fs idmapping updates
acl updates
setgid updates
Christoph Hellwig (1):
dma-mapping updates
Chuck Lever (1):
nfsd updates
Damien Le Moal (2):
zonefs update
ATA updates
Dan Williams (1):
cxl updates
Darrick Wong (4):
iomap updates
xfs updates
more iomap updates
more xfs updates
Dave Airlie (2):
drm updates
drm fixes
Dave Hansen (1):
x86 SGX updates
David Howells (2):
AFS fixes
fscache updates
David Sterba (2):
btrfs updates
affs fix
David Teigland (1):
dlm updates
Dmitry Torokhov (1):
input updates
Dominique Martinet (1):
9p updates
Eric Biggers (1):
fsverity update
Gao Xiang (1):
erofs updates
Geert Uytterhoeven (1):
m68k updates
Greg KH (6):
char / misc driver updates
driver core / kernfs updates
USB / Thunderbolt updates
staging driver updates
SPDX updates
tty / serial driver updates
Greg Ungerer (1):
m68knommu fixes
Guenter Roeck (2):
hwmon updates
hwmon fixes
Guo Ren (1):
csky updates
Gustavo Silva (1):
uapi flexible array update
Hans de Goede (1):
x86 platform driver updates
Hans-Christian Noren Egtvedt (1):
AVR32 updates
Helge Deller (2):
parisc updates
fbdev updates
Herbert Xu (1):
crypto updates
Huacai Chen (1):
LoongArch updates
Ilya Dryomov (1):
ceph updates
Ingo Molnar (8):
scheduler updates
locking updates
perf events updates
perf fixes
scheduler fixes
x86 fixes
x86 fix
timer fixes
Jaegeuk Kim (1):
f2fs updates
Jakub Kicinski (1):
networking fixes
James Bottomley (2):
SCSI updates
more SCSI updates
Jan Kara (2):
ext2 and reiserfs updates
fsnotify updates
Jarkko Sakkinen (1):
tpm updates
Jason Donenfeld (1):
random number generator updates
Jason Gunthorpe (1):
rdma updates
Jassi Brar (1):
mailbox updates
Jeff Layton (1):
file locking updates
Jens Axboe (7):
io_uring updates
io_uring buffered writes support
io_uring zerocopy support
block updates
block driver updates
io_uring fixes
block fixes
Jiri Kosina (1):
HID updates
Joerg Roedel (1):
iommu updates
John Johansen (1):
AppArmor updates
Jon Mason (1):
NTB updates
Jonathan Corbet (1):
documentation updates
Juergen Gross (2):
xen updates
more xen updates
Julia Lawall (1):
coccinelle semantic patch updates
Kees Cook (4):
pstore updates
seccomp update
execve updates
hardening updates
Lee Jones (2):
MFD updates
backlight updates
Len Brown (1):
turbostat updates
Linus Walleij (1):
pin control updates
Luis Chamberlain (2):
module updates
sysctl updates
Mark Brown (3):
regmap updates
regulator updates
spi updates
Masahiro Yamada (1):
Kbuild updates
Matthew Wilcox (2):
XArray/IDR updates
folio updates
Mauro Carvalho Chehab (1):
media updates
Max Filippov (1):
xtensa updates
Micah Morton (1):
SafeSetID updates
Michael Ellerman (2):
powerpc updates
powerpc fixes
Michael Tsirkin (1):
virtio updates
Michal Simek (1):
microblaze updates
Mike Rapoport (1):
memblock updates
Mike Snitzer (3):
device mapper updates
more device mapper updates
device mapper fixes
Miklos Szeredi (2):
overlayfs update
fuse updates
Mimi Zohar (1):
integrity updates
Namjae Jeon (1):
exfat updates
Palmer Dabbelt (2):
RISC-V updates
more RISC-V updates
Paolo Abeni (1):
networking changes
Paolo Bonzini (2):
kvm updates
more kvm updates
Paul McKenney (2):
RCU updates
nolibc updates
Paul Moore (3):
selinux updates
audit updates
LSM update
Pavel Machek (1):
LED updates
Petr Mladek (2):
printk updates
livepatching update
Rafael Wysocki (6):
ACPI updates
power management updates
thermal control updates
more thermal control updates
more power management updates
more ACPI updates
Richard Weinberger (2):
UML updates
MTD updates
Rob Herring (2):
devicetree updates
devicetree fixes
Russell King (1):
ARM updates
Sebastian Reichel (1):
power supply and reset updates
Shuah Khan (2):
KUnit updates
Kselftest updates
Stafford Horne (1):
OpenRISC updates
Stephen Boyd (1):
clk updates
Steve French (3):
cifs updates
ksmbd updates
more cifs updates
Steven Rostedt (2):
real time analysis tool (rtla) updates
tracing updates
Takashi Iwai (2):
sound updates
sound fixes
Ted Ts'o (1):
ext4 updates
Tejun Heo (1):
cgroup updates
Thierry Reding (1):
pwm updates
Thomas Bogendoerfer (1):
MIPS updates
Thomas Gleixner (2):
timer updates
irq updates
Trond Myklebust (1):
NFS client updates
Tzung-Bi Shih (1):
chrome platform updates
Ulf Hansson (1):
MMC updates
Vinod Koul (1):
dmaengine updates
Vlastimil Babka (1):
slab updates
Wei Liu (1):
hyperv updates
Will Deacon (1):
arm64 updates
Wim Van Sebroeck (1):
watchdog updates
Wolfram Sang (2):
i2c updates
more i2c updates
Yury Norov (1):
bitmap updates
Linus Torvalds has announced the first release candidate for Linux kernel 6.0.
